German police were searching on Saturday for a pair of suspects involved in the assault of two Green Party politicians in the city of Essen on Thursday evening. The State Protection Office had taken over the investigation due the possibility that the assault could have been politically motivated. Kai Gehring, who serves in the German parliament in Berlin, was with Rolf Fliss, a local Essen politician, when they were approached on a major city street at around 10:30 pm on Thursday. After an initially friendly conversation, an argument and insults ensued. Fliss was punched in the face and slight…